Finding the Fourth Proportional to 65,103, 89,831.34 and 40,900.20

Step by Step Solution

1. Step 1: Write the proportion equation
   65,103 : 89,831.34 = 40,900.20 : x
2. Step 2: Convert to fraction form
   65,103/89,831.34 = 40,900.20/x
3. Step 3: Cross multiply
   65,103x = 89,831.34 × 40,900.20
4. Step 4: Simplify right side
   65,103x = 3,674,119,772.27
5. Step 5: Solve for x
   x = 3,674,119,772.27/65,103
6. Step 6: Final answer
   x = 56,435.49